Laboratory tube rack



FIG. 1 is a front perspective view of a laboratory tube rack embodying my new design.

FIG. 2 is an exploded front perspective view of the base and rack.

FIG. 3 is a top plan view of the rack and base assembled.

FIG. 4 is a top plan view of the base with the rack removed.

FIG. 5 is a bottom plan view of the base.

FIG. 6 is a cross-sectional view on line 6--6 of FIG. 3.

The end of the base opposite to that shown in FIGS. 1 and 2 is a mirror image thereof. 

The ornamental design for a laboratory tube rack, as shown and described. 